# coding=utf-8
# Copyright 2024 The Google Research Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

"""Utilities for working with local files."""
import os
from typing import Text


f_exists = os.path.exists
f_makedirs = os.makedirs


def maybe_make_dirs(path):
  """Creates the sub directories leading up to the given file.

  Args:
    path: The path to a file (i.e., the last word in the path is assumed to be a
      file, not a directory).

  Returns:
    The path generated.
  """
  dirname = os.path.dirname(path)
  if dirname and not f_exists(dirname):
    f_makedirs(dirname)
  return dirname
